Home / 3,545.61-5,318.24-1,080.38

Finding the Fourth Proportional to 3,545.61, 5,318.24 and 1,080.38

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Solution

The fourth proportional to 3,545.61, 5,318.24 and 1,080.38 is: 1,620.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.61 : 5,318.24 = 1,080.38 : x
  2. Step 2: Convert to fraction form
    3,545.61/5,318.24 = 1,080.38/x
  3. Step 3: Cross multiply
    3,545.61x = 5,318.24 × 1,080.38
  4. Step 4: Simplify right side
    3,545.61x = 5,745,688.14
  5. Step 5: Solve for x
    x = 5,745,688.14/3,545.61
  6. Step 6: Final answer
    x = 1,620.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.